MKVToolNix

MKVToolNix is a comprehensive set of tools and libraries designed for working with Matroska (MKV) and WebM media containers. The software provides everything needed to create, modify, and inspect these increasingly popular video formats. As the reference implementation of the Matroska multiplexer, MKVToolNix has become the standard choice for professionals and enthusiasts handling advanced video container operations. It's fast, functional, and refreshingly straightforward to use. The suite includes four powerful tools: mkvmerge for creating and combining containers, mkvinfo for analyzing content, mkvextract for recovering files from containers, and mkvpropedit for editing container properties without re-encoding. These tools are unified through both a user-friendly graphical interface and robust command-line access, making MKVToolNix suitable for simple point-and-click operations or complex batch scripting workflows. Whether you're demuxing video tracks, adding external subtitles, or managing audio streams, the software handles these tasks with precision. You can work with MKV files created from various source formats, then organize them exactly as needed. MKV containers excel at storing multiple video and audio tracks, subtitle files, and additional attachments in a single flexible file. This open format has gained widespread adoption across media archiving, anime distribution, and professional video production. MKVToolNix works across platforms—download it for or —making it accessible whether you're on a desktop or server environment. The software is completely and distributed under principles, with source code available for inspection and modification. No licensing fees. No limitations. No advertisements cluttering the interface.

MKVToolNix is a open source converters available for Windows, Linux. Browse more free software or open source programs.